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        <a href="oauth2client-module.html">Package&nbsp;oauth2client</a> ::
        <a href="oauth2client.locked_file-module.html">Module&nbsp;locked_file</a> ::
        Class&nbsp;LockedFile
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<!-- ==================== CLASS DESCRIPTION ==================== -->
<h1 class="epydoc">Class LockedFile</h1><p class="nomargin-top"><span class="codelink"><a href="oauth2client.locked_file-pysrc.html#LockedFile">source&nbsp;code</a></span></p>
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<area shape="rect" id="node1_6" href="oauth2client.locked_file.LockedFile-class.html#__init__" title="Construct a LockedFile." alt="" coords="18,36,446,55"/>
<area shape="rect" id="node1_7" href="oauth2client.locked_file.LockedFile-class.html#filename" title="Return the filename we were constructed with." alt="" coords="18,55,446,73"/>
<area shape="rect" id="node1_8" href="oauth2client.locked_file.LockedFile-class.html#file_handle" title="Return the file_handle to the opened file." alt="" coords="18,73,446,92"/>
<area shape="rect" id="node1_9" href="oauth2client.locked_file.LockedFile-class.html#is_locked" title="Return whether we successfully locked the file." alt="" coords="18,92,446,111"/>
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<area shape="rect" id="node1_11" href="oauth2client.locked_file.LockedFile-class.html#unlock_and_close" title="Unlock and close a file." alt="" coords="18,129,446,148"/>
<area shape="rect" id="node1" href="oauth2client.locked_file.LockedFile-class.html" title="Represent a file that has exclusive access." alt="" coords="5,5,457,155"/>
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<pre class="literalblock">
Represent a file that has exclusive access.

</pre>

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          <td><span class="summary-sig"><a href="oauth2client.locked_file.LockedFile-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">self</span>,
        <span class="summary-sig-arg">filename</span>,
        <span class="summary-sig-arg">mode</span>,
        <span class="summary-sig-arg">fallback_mode</span>,
        <span class="summary-sig-arg">use_native_locking</span>=<span class="summary-sig-default">True</span>)</span><br />
      Construct a LockedFile.</td>
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            <span class="codelink"><a href="oauth2client.locked_file-pysrc.html#LockedFile.__init__">source&nbsp;code</a></span>
            
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          <td><span class="summary-sig"><a name="filename"></a><span class="summary-sig-name">filename</span>(<span class="summary-sig-arg">self</span>)</span><br />
      Return the filename we were constructed with.</td>
          <td align="right" valign="top">
            <span class="codelink"><a href="oauth2client.locked_file-pysrc.html#LockedFile.filename">source&nbsp;code</a></span>
            
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          <td><span class="summary-sig"><a name="file_handle"></a><span class="summary-sig-name">file_handle</span>(<span class="summary-sig-arg">self</span>)</span><br />
      Return the file_handle to the opened file.</td>
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            <span class="codelink"><a href="oauth2client.locked_file-pysrc.html#LockedFile.file_handle">source&nbsp;code</a></span>
            
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          <td><span class="summary-sig"><a name="is_locked"></a><span class="summary-sig-name">is_locked</span>(<span class="summary-sig-arg">self</span>)</span><br />
      Return whether we successfully locked the file.</td>
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            <span class="codelink"><a href="oauth2client.locked_file-pysrc.html#LockedFile.is_locked">source&nbsp;code</a></span>
            
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          <td><span class="summary-sig"><a href="oauth2client.locked_file.LockedFile-class.html#open_and_lock" class="summary-sig-name">open_and_lock</a>(<span class="summary-sig-arg">self</span>,
        <span class="summary-sig-arg">timeout</span>=<span class="summary-sig-default">0</span>,
        <span class="summary-sig-arg">delay</span>=<span class="summary-sig-default">0.05</span>)</span><br />
      Open the file, trying to lock it.</td>
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            <span class="codelink"><a href="oauth2client.locked_file-pysrc.html#LockedFile.open_and_lock">source&nbsp;code</a></span>
            
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          <td><span class="summary-sig"><a name="unlock_and_close"></a><span class="summary-sig-name">unlock_and_close</span>(<span class="summary-sig-arg">self</span>)</span><br />
      Unlock and close a file.</td>
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            <span class="codelink"><a href="oauth2client.locked_file-pysrc.html#LockedFile.unlock_and_close">source&nbsp;code</a></span>
            
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    <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
      <code>__delattr__</code>,
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<a name="__init__"></a>
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  <h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>,
        <span class="sig-arg">filename</span>,
        <span class="sig-arg">mode</span>,
        <span class="sig-arg">fallback_mode</span>,
        <span class="sig-arg">use_native_locking</span>=<span class="sig-default">True</span>)</span>
    <br /><em class="fname">(Constructor)</em>
  </h3>
  </td><td align="right" valign="top"
    ><span class="codelink"><a href="oauth2client.locked_file-pysrc.html#LockedFile.__init__">source&nbsp;code</a></span>&nbsp;
    </td>
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  <pre class="literalblock">
Construct a LockedFile.

Args:
  filename: string, The path of the file to open.
  mode: string, The mode to try to open the file with.
  fallback_mode: string, The mode to use if locking fails.
  use_native_locking: bool, Whether or not fcntl/win32 locking is used.

</pre>
  <dl class="fields">
    <dt>Decorators:</dt>
    <dd><ul class="nomargin-top">
        <li><code>@util.positional(4)</code></li>
    </ul></dd>
    <dt>Overrides:
        object.__init__
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<a name="open_and_lock"></a>
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  <h3 class="epydoc"><span class="sig"><span class="sig-name">open_and_lock</span>(<span class="sig-arg">self</span>,
        <span class="sig-arg">timeout</span>=<span class="sig-default">0</span>,
        <span class="sig-arg">delay</span>=<span class="sig-default">0.05</span>)</span>
  </h3>
  </td><td align="right" valign="top"
    ><span class="codelink"><a href="oauth2client.locked_file-pysrc.html#LockedFile.open_and_lock">source&nbsp;code</a></span>&nbsp;
    </td>
  </tr></table>
  
  <pre class="literalblock">
Open the file, trying to lock it.

Args:
  timeout: float, The number of seconds to try to acquire the lock.
  delay: float, The number of seconds to wait between retry attempts.

Raises:
  AlreadyLockedException: if the lock is already acquired.
  IOError: if the open fails.

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